package com.md.lainxi;

import java.util.Scanner;

public class LianXi06 {
	public static void main(String[] args) {
		int a;
		Scanner scanner = new Scanner(System.in);
		a= scanner.nextInt();
		for (int i = 1; i < a*2-1; i++) {
			for (int j = 1; j < a*2-1; j++) {
				if (i<=a && j>a-i && j<a+i || a<i && j>i-a && j<=3*a-1-i) {
					System.out.println(" *");
				}else {
					System.out.println("  ");
				}
				
			}
			System.out.println();
		}
	}

}
